RDO Series
Precision compensated pressure sensors
FEATURES
· 0...10 mbar to 0...5 bar,
0...5 inch H
2
O to 0...100 psi,
differential, gage or absolute
· Temperature compensated
· Calibrated zero and span
· High impedance for low power
applications
· Small DIP packages
· Sensortechnics PRO services
MEDIA COMPATIBILITY
To be used with non-corrosive, non-ionic working
fluids such as clean dry air, dry gases and the like.
SPECIFICATIONS
Maximum ratings
Supply voltage V
S
Lead temperature (soldering 4 sec.)
Temperature ranges
Compensated
Operating
Storage
Humidity limits (non-condensing)
+20 V
DC
250 °C
EQUIVALENT CIRCUIT
+Vs
0 to 50 °C
-40 to 85 °C
-55 to 125 °C
0 to 100% RH
+
-
Common mode pressure
all devices up to 25 mbar/10 "H2O
all others
50 psig
150 psig
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RDO Series
Precision compensated pressure sensors
PRESSURE RANGES SPECIFICATIONS
1
RDO...P (Prime Grade) devices
Part number
RDOM050...P
RDOM100...P
RDOM250...P
RDOB001...P
RDOB002...P
RDOB005...P
RDOP001...P
RDOP005...P
RDOP015...P
RDOP030...P
RDOP100...P
Operating pressure
0...50 mbar
0...100 mbar
0...250 mbar
0...1 bar
0...2 bar
0...5 bar
0...1 psi
0...5 psi
0...15 psi
0...30 psi
0...100 psi
Proof pressure
1.4 bar
1.4 bar
1.4 bar
2.1 bar
4.2 bar
10.4 bar
2 0 p si
2 0 p si
3 0 p si
6 0 p si
1 5 0 p si
11
Full-scale span
2
Min.
Typ.
Max.
12.92 mV
25.91 mV
43.1 mV
86.2 mV
86.2 mV
71.8 mV
17.82 mV
59.40 mV
89.10 mV
89.10 mV
99.00 mV
13.05 mV
26.17 mV
43.5 mV
87.0 mV
87.0 mV
72.5 mV
18.0 mV
60.0 mV
90.0 mV
90.0 mV
100.0 mV
13.18 mV
26.43 mV
43.9 mV
87.9 mV
87.9 mV
73.2 mV
18.18 mV
60.60 mV
90.90 mV
90.90 mV
101.0 mV
RDO...H (High Grade) devices
Part number
RDOM010...H
RDOM025...H
RDOM050...H
RDOM100...H
RDOM250...H
RDOB001...H
RDOB002...H
RDOB005...H
RDOH005...H
RDOH010...H
RDOP001...H
RDOP005...H
RDOP015...H
RDOP030...H
RDOP100...H
Operating pressure
0...10 mbar
0...25 mbar
0...50 mbar
0...100 mbar
0...250 mbar
0...1 bar
0...2 bar
0...5 bar
0...5 inch H
2
O
0...10 inch H
2
O
0...1 psi
0...5 psi
0...15 psi
0...30 psi
0...100 psi
Proof pressure
11
250 mbar
250 mbar
1.4 bar
1.4 bar
1.4 bar
2.1 bar
4.2 bar
10.4 bar
200 inch H
2
O
200 inch H
2
O
2 0 p si
2 0 p si
3 0 p si
6 0 p si
1 5 0 p si
Full-scale span
2
Min.
Typ.
Max.
15.7 mV
24.6 mV
12.5 mV
25.2 mV
42.0 mV
84.0 mV
84.0 mV
70.0 mV
19.5 mV
24.5 mV
17.37 mV
57.90 mV
86.85 mV
86.85 mV
96.50 mV
16.1 mV
25.1 mV
13.0 mV
26.1 mV
43.5 mV
87.0 mV
87.0 mV
72.5 mV
20.0 mV
25.0 mV
18 mV
60 mV
90 mV
90 mV
100 mV
16.5 mV
25.6 mV
13.5 mV
27.0 mV
45.0 mV
90.0 mV
90.0 mV
75.0 mV
20.5 mV
25.5 mV
18.63 mV
62.10 mV
93.15 mV
93.15 mV
103.5 mV
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RDO Series
Precision compensated pressure sensors
PERFORMANCE CHARACTERISTICS
1
Characteristics
all RDO...D4P and RDO...G2P devices
all RDO...A2P devices
12
all devices up to 25 mbar/10 "H
2
O
all RDO...A2H devices
12
all other devices
Combined linearity and hysteresis
3
all RDO...P devices
3
all other devices
Temperature effects (0 to 50°C)
4
Offset
all RDO...P devices
all devices up to 25 mbar/10 "H
2
O
all other devices
Span
all RDO...P
all other devices
Repeatability
5
all devices up to 25 mbar/10 "H
2
O
all other devices
Input impedance
6
Output impedance
7
Common mode voltage
8
Response time
9
Long term stability of offset and span
10
Zero pressure offset
Min.
-0.25
-0.30
-0.75
-1.00
-0.50
Typ.
0
0
0
0
0
±0.1
±0.2
±0.2
±0.2
±0.2
±0.4
±0.4
±0.5
±0.2
4.0
4.0
Max.
+0.25
+0.30
+0.75
+1.00
+0.50
±0.25
±1.00
±0.5
±0.6
±1.0
±1.0
±2.0
±0.5
Unit
mV
%FSO
mV
%FSO
kΩ
5.0
V
DC
µ se c
mV
1.5
3.0
100
±0.1
Specification notes:
1.
Reference conditions: supply voltage, V
S
= 12V
DC
; T
A
= 25°C; common mode line pressure = 0 bar; pressure applied to port 2.
For absolute devices only, pressure is applied to port 1 and the output polarity is reversed.
2.
Span is the algebraic difference between the output voltage at full scale pressure and the output at zero pressure. Span is
ratiometric to the supply voltage.
3.
Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing
pressure. Maximum linearity and hysteresis for the RDOM250...P is 0.35 %FSO and for the RDOP005...P is 0.5 %FSO.
4.
Maximum error band of the offset voltage and the error band of the span, relative to the 25°C reading.
5.
Maximum difference in output at any pressure within the operating pressure range and temperature within 0 to +50°C after:
a) 100 temperature cycles, 0 to +50°C.
b) 1.0 million pressure cycles, 0 psi to full scale span.
6.
Input impedance is the impedance between V
S
and ground.
7.
Output impedance is the impedance between + and - outputs.
8.
This is the common mode voltage of the output arms for V
S
= 12 V
DC
.
9.
Response time for a zero to full scale span pressure step change, 10 to 90 % rise time.
10.
Long term stability over a one year period.
11.
If the maximum pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die may fracture.
The proof pressure for the forward gage of all devices in the D4-package is the specified value or 7 bar/100 psi, whatever is less.
12.
Absolute devices with improved zero pressure offset values are available on request. Please contact your nearest Sensortechnics
sales office for further information.
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RDO Series
Precision compensated pressure sensors
PHYSICAL DIMENSIONS
RDO...G2...,
RDO...A2...
0.470
(11.94)
0.550
(13.97)
0.105
(2.67)
0.315
(8.00) typ.
0.280
(7.11) typ.
compensation
circuit
0.600
(15.24) typ.
0.01
(0.25)
0.190
(4.83) typ.
0.020
(0.51) typ.
0.100
(2.54) typ.
0.110
(2.79) typ.
third angle projection
dimensions in inches (mm)
mass:
2 g
RDO...D4...
1
P1
4
P2
0.470
(11.94)
0.550
(13.97)
Ø 0.090
(2.29) typ.
0.135
(3.43)
0.250
(6.35)
0.300
(7.62)
0.430
0.335 (10.92) typ.
(8.50) typ.
compensation
circuit
0.600
(15.24) typ.
0.120
(3.05) typ.
0.010
(0.25) typ.
0.020
(0.51) typ.
0.100
(2.54) typ.
0.110
(2.79) typ.
third angle projection
dimensions in inches (mm)
mass:
2 g
ELECTRICAL CONNECTION
Top View
RDO...G2...
Pin 1 identified by
chamfered corner
P2
+Vs
4
1 out +
GND
out -
Vent hole
out -
GND
out +
4
RDO...A2...
Pin 1 identified by
chamfered corner
1
P1
+Vs
out + 1
GND
out -
RDO...D4...
P1
P2
4
+Vs
Note:
The polarity identicated is for pressure applied to
RDO...G2..., RDO...D4... : P2 (backward gage), RDO...A2... : P1 (forward gage)
4/5
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RDO Series
Precision compensated pressure sensors
ORDERING INFORMATION - AVAILABLE LISTINGS
Note:
RDO...P = Prime Grade,
RDO...H = High Grade
Pressure range
10 mbar
25 mbar
50 mbar
100 mbar
250 mbar
1 bar
2 bar
5 bar
5 "H
2
O
10 "H
2
O
1 p si
5 p si
1 5 p si
3 0 p si
1 0 0 p si
Pressure mode
Absolute
Gage
RDOM010G2H
RDOM025G2H
RDOM050G2P
RDOM100G2(P,H)
RDOM250G2(P,H)
RDOB001A2(P,H)
RDOB002A2(P,H)
RDOB005A2(P,H)
RDOB001G2(P,H)
RDOB002G2(P,H)
RDOB005G2(P,H)
Differential/Gage
RDOM010D4H
RDOM025D4(P,H)
RDOM050D4(P,H)
RDOM100D4(P,H)
RDOM250D4(P,H)
RDOB001D4(P,H)
RDOB002D4H
RDOB005D4(P,H)
RDOH005D4H
RDOH010D4H
RDOP001G2(P,H)
RDOP005G2(P,H)
RDOP015A2(P,H)
RDOP030A2(P,H)
RDOP100A2(P,H)
RDOP015G2(P,H)
RDOP030G2(P,H)
RDOP100G2(P,H)
RDOP001D4(P,H)
RDOP005D4(P,H)
RDOP015D4(P,H)
RDOP030D4H
RDOP100D4(P,H)
Sensortechnics PRO services:
· Extended guarantee period of 2 years
· Improved performance characteristics
· Custom product modifications and adaptations even for small quantities
· Advanced logistics models for supply inventory and short delivery times
· Technical support through application engineers on the phone or at your site
· Fastest possible technical response for design and QA engineers
... plus other services on request
Sensortechnics reserves the right to make changes to any products herein. Sensortechnics does not assume any liability arising out of the
application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others.
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